CN111883712A - Energy storage battery cabinet - Google Patents
Energy storage battery cabinet Download PDFInfo
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- CN111883712A CN111883712A CN202010816219.4A CN202010816219A CN111883712A CN 111883712 A CN111883712 A CN 111883712A CN 202010816219 A CN202010816219 A CN 202010816219A CN 111883712 A CN111883712 A CN 111883712A
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- storage battery
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- 238000004146 energy storage Methods 0.000 title claims abstract description 82
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 60
- 230000017525 heat dissipation Effects 0.000 description 22
- 238000001816 cooling Methods 0.000 description 19
- 238000004378 air conditioning Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
An energy storage battery cabinet is disclosed. The energy storage battery cabinet in this application embodiment includes: the battery cabinet frame is of a layered frame structure, and the layers are separated by a bottom plate; the bottom tray is fixed on the bottom, a plurality of mutually separated electric cores are fixedly placed on the bottom tray, and ventilation holes are formed in the bottom tray at intervals in grooves for placing the electric cores; the battery cabinet shell is used for sealing the battery cabinet rack and comprises a battery cabinet rear end shell, and the battery cabinet rear end shell corresponds to the ventilation holes in the area of each layer of the battery cabinet rack. The energy storage battery cabinet that this application embodiment provided has reduced manufacturing cost and cost of maintenance by a wide margin when improving radiating efficiency and temperature homogeneity.
Description
Technical Field
The application relates to the technical field of energy storage, especially, relate to an energy storage battery cabinet.
Background
The current technical scheme mainly comprises air cooling, also called air cooling and liquid cooling (mainly water cooling). Air cooling removes heat from the battery pack by air flow. The liquid cooling is that the heat in the battery pack is taken away through the flowing of cooling water by arranging liquid cooling pipelines in the battery pack. The energy storage battery cabinet is cooled by a cooling system of the battery pack or an air-conditioning air duct, and cold air is sucked (blown) into the battery pack to cool.
Because the lithium ion battery has the advantages of large energy density, long service life, environmental protection and the like, the lithium ion battery becomes a main energy storage device for energy storage. In the wide application of lithium ion batteries, a plurality of battery packs are connected in series and in parallel to form a high-voltage or (and) high-energy battery cabinet (also called an energy storage battery cabinet) for use.
At present, in the field of lithium ion batteries, the service life of the lithium ion battery is shortened sharply at high temperature, and even safety risks are caused. The heat dissipation of battery cabinet mainly relies on external air conditioner to the battery package heat dissipation of cooling, and the battery package generally adopts air-cooled or liquid cooling mode to dispel the heat. Wherein, among the radiating mode of liquid cooling, use the heat pipe winding battery, fill up water in the heat pipe and for collective coolant liquid, in time conduct away the heat of battery package, its structure is complicated nevertheless, and is with very high costs, has increased the extra volume of battery package, is unfavorable for the assembly, and in case the heat pipe breaks easily causes inside short circuit to cause serious safety risk, and be not suitable for the heat dissipation of large-scale energy storage battery cabinet. Forced air cooling also known as air cooling takes away the heat through air natural flow, moreover, the steam generator is simple in structure and low in cost, is the main radiating mode of the current large-scale energy storage battery cabinet, but the radiating mode has high design requirements on the air duct, when the battery packs forming the battery cabinet are more, the temperature distribution among the battery packs is often uneven due to the stacking of the battery packs in the battery cabinet, so that the whole service life of the battery cabinet is influenced, and due to the use of the complex air duct and the radiating design, the cost of the battery packs and the cost of the battery cabinet are greatly increased.
Disclosure of Invention
In order to partially or fully solve the above technical problems, it is desirable to provide a new energy storage battery cabinet.
According to an aspect of the application, an energy storage battery cabinet is provided, comprising:
the battery cabinet frame is of a layered frame structure, and the layers are separated by a bottom plate;
the bottom tray is fixed on the bottom, a plurality of mutually separated electric cores are fixedly placed on the bottom tray, and ventilation holes are formed in the bottom tray at intervals in grooves for placing the electric cores;
the battery cabinet shell is used for sealing the battery cabinet rack and comprises a battery cabinet rear end shell, and the battery cabinet rear end shell corresponds to the ventilation holes in the area of each layer of the battery cabinet rack.
In some examples, the energy storage battery cabinet further includes: electric core elastic connection piece and portable connector set up in the electric core of the same layer passes through in the battery cabinet frame electric core elastic connection piece and portable plug connector realize the series-parallel connection.
In some examples, one end of the cell elastic connecting sheet is welded on positive and negative poles of a cell, the other end of the cell elastic connecting sheet is in an insertable structure and is connected with one movable connector, and one movable connector is connected with two adjacent cell elastic connecting sheets so as to connect adjacent cells in series or in parallel.
In some examples, each layer of the battery cabinet frame for installing the battery cells is provided with a guide rail, and the movable plug connectors are movably installed on the guide rails.
In some examples, the energy storage battery cabinet further includes: a cable; the movable plug connectors at the same end of the adjacent layer of guide rails are respectively connected with the cables so as to realize the electric connection between the adjacent layers of electric cores in the battery cabinet rack.
In some examples, the height of each layer for mounting the battery cells in the battery cabinet frame satisfies: after the battery cell is mounted on the bottom plate of the battery cabinet frame, the distance between the upper surface of the battery cell and the bottom plate of the previous layer is within a preset range.
In some examples, the predetermined range is 5 to 20 cm.
In some examples, the battery cabinet housing further includes a battery cabinet front end housing packaged on the front end face of the battery cabinet rack, and a fan is disposed on the battery cabinet front end housing in an area corresponding to each layer of the battery cabinet rack for mounting the battery cells.
In some examples, the energy storage battery cabinet further includes: the battery management module is arranged in an area, corresponding to each layer for installing battery cores, in the battery cabinet rack, on the shell at the front end of the battery cabinet, and is electrically connected with the battery cores in the corresponding layers.
In some examples, the energy storage battery cabinet further includes: and the high-voltage box is fixed in the bottom layer of the battery cabinet rack and is fixed on the bottom plate of the bottom layer.
The energy storage battery cabinet that this application embodiment provided has reduced manufacturing cost and cost of maintenance by a wide margin when improving radiating efficiency and temperature homogeneity.
Drawings
Fig. 1 is a schematic view of an overall structure of an energy storage battery cabinet in an embodiment of the present application.
Fig. 2 is a schematic diagram of a hierarchical structure of a battery cabinet rack in an energy storage battery cabinet according to an embodiment of the present application.
Fig. 3 is a schematic diagram of an electric core and a fixing structure thereof in an energy storage battery cabinet according to an embodiment of the application.
Fig. 4 is a schematic diagram of a movable plug connector and a fixing structure thereof in an energy storage battery cabinet according to an embodiment of the application.
Fig. 5 is a schematic view of overall heat dissipation of the energy storage battery cabinet according to the embodiment of the application.
Description of reference numerals:
10. an energy storage battery cabinet; 11. a battery cabinet housing; 111. a battery cabinet front end housing; 112. a battery cabinet rear end housing; 113. a battery cabinet left end shell; 12. a battery cabinet frame; 120. a reinforcing beam; 121. a base plate; 122. a vent hole; 123. a guide rail; 124. a right baffle; 13. a bottom tray; 131. a vent hole; 14. an electric core; 15. an electric core elastic connecting sheet; 16. a movable connector; 17. a cable; 18. a fan; 19. a high pressure tank; 110. a battery management module; 20. an air conditioning duct; 21. and an air outlet of the air-conditioning duct.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that, in the present application, the embodiments and the features thereof may be arbitrarily combined with each other without conflict.
In the field of lithium ion battery energy storage, a large-medium energy storage system is usually used in a manner that battery packs are connected in series and parallel to form a high-voltage or (and) high-energy battery cabinet, and a plurality of battery cabinets are connected in series and parallel to form a large-medium energy storage system. Because the liquid cooling is not very applied to the energy storage battery cabinet, therefore often adopt the air-cooled method to the heat dissipation of energy storage battery cabinet, but because the leakproofness of battery package, when there is a great number of battery package when constituteing the battery cabinet, there is the difference in temperature between the battery package, when high-rate charge-discharge or heat dissipation is not in time, the temperature difference between the battery package can be bigger to influence the life of whole battery cabinet. In addition, the air-cooled heat dissipation mode has high requirements on the heat dissipation design of the battery cabinet and the battery pack, so that the cost is greatly increased and the space utilization rate is reduced.
For solving the radiating above-mentioned technical problem of correlation technique energy storage battery cabinet, the basic idea of this application embodiment is to realize a new energy storage battery cabinet through simplifying energy storage battery cabinet inner structure and designing unique heat radiation structure to reduce the manufacturing cost and the cost of maintenance of energy storage battery cabinet by a wide margin when improving radiating efficiency and temperature homogeneity.
The following is a detailed description of specific technical details of the energy storage battery cabinet in the embodiment of the present application.
Fig. 1 shows an exemplary structure of an energy storage battery cabinet provided in an embodiment of the present application. As shown in fig. 1, the energy storage battery cabinet 10 according to the embodiment of the present application may include: the battery cabinet comprises a battery cabinet shell 11, a battery cabinet frame 12, a bottom tray 13, a battery cell 14, a battery cell elastic connecting sheet 15, a movable connector 16, a cable 17, a fan 18, a high-voltage box 19 and a battery management module 110.
Fig. 2 schematically shows the structure of the battery cabinet frame 12 in the energy storage battery cabinet 10 and the fixing and connecting structure of the battery cells 14 thereon. As shown in fig. 2, the battery cabinet frame 12 is a layered frame structure including four reinforcing beams 120 and a bottom plate 121 of each layer, which is separated from layer to layer by the bottom plate 121 and is open on three sides. In some examples, as shown in fig. 2, the layered frame structure of the battery cabinet frame 12 may further include a right side baffle 124, the right side baffle 124 being enclosed on the right side of the battery cabinet frame 12. In some examples, the bottom plate 121 is a porous structure, that is, the bottom plate 121 is provided with the vent holes 122, and the vent holes 122 on the bottom plate 121 can better ventilate, so that the heat dissipation efficiency of the energy storage battery cabinet 10 and the temperature uniformity among layers are improved. In some examples, the bottom plate 121 may be made of a metal material with good heat dissipation.
As shown in fig. 2, a group of cells (referred to herein as a cell pack) is disposed in each layer of the battery cabinet frame 12. Fig. 3 shows an exemplary structure of the electric core set in a single layer of the battery cabinet frame 12. As shown in fig. 3, all the cells 14 in the cell group are fixed on a bottom tray 13, and the bottom tray 13 is provided with vent holes 131. As shown in fig. 2, the cell pack is fixed on the bottom plate 121 of the corresponding layer in the battery cabinet frame 12 through the bottom tray 13, and the cells 14 in the cell pack are connected in series and parallel through the cell elastic connecting sheets 15 and the movable connectors 16.
As shown in fig. 3, the bottom tray 13 is provided with grooves (not shown) spaced apart from each other, and the cells 14 are inserted into the grooves and fixed, so that the respective cells 14 can be spaced apart and fixed by the bottom tray 13. The bottom tray 13 is provided with ventilation holes 131 at intervals in a groove (not shown in the figure) for placing the battery cell 14, and the airflow can enter from the ventilation holes 131 and fully contact with the bottom of the battery cell 14, so as to achieve the purpose of heat dissipation and cooling of the battery cell 14. In some examples, the bottom tray 13 may be made of a high strength insulating plastic. For example, a high-strength insulating material having high temperature resistance and good support properties may be selected.
In some examples, the bottom tray 13 may be secured to the bottom panel 121 of the corresponding tier of the battery cabinet frame 12 by bolts or other similar means.
The height of the single layer in the battery cabinet frame 12 may be designed according to the specifications of the battery cells 14. In some examples, the height of each layer of the battery cabinet rack 12 for mounting cells may satisfy the following condition: the distance between the upper surface of the battery cell and the upper layer of the bottom plate 121 after the battery cell group is installed is within a predetermined range, so that heat can be sufficiently dissipated. For example, the predetermined range of the distance may be 5 to 50 cm. That is, the distance between the upper surface of the battery cell and the bottom plate 121 of the previous layer after the battery cell pack is installed in a certain layer of the rack 12 of the battery cabinet may be any value between 5cm, 7cm, 10cm, 20cm, or 5 to 20 cm. In practical applications, the predetermined range depends on the specifications of the battery cells, but also depends on the space limitation of the installation environment of the energy storage battery cabinet 10, and is not limited to the predetermined range.
As shown in fig. 2, one end of the cell elastic connecting sheet 15 is welded on the positive and negative poles of the cell 14, and the other end is in an insertable structure and connected with the mobile connector 16, so that the cells 14 in the cell pack can be connected in series and parallel through the cell elastic connecting sheet 15 and the mobile connector 16. In this example, when the battery cell 14 needs to be replaced, the battery cell 14 can be replaced only by disconnecting the positive and negative poles of the battery cell 14 from the elastic connection sheet 15 of the battery cell, so that the operation is convenient and the maintenance cost is low.
In some examples, as shown in fig. 2, the battery cabinet frame 12 further includes a guide rail 123 corresponding to each layer on which the battery cells are mounted, the guide rail 123 is fixed on the reinforcing beam 120 of the battery cabinet frame 12, the movable connectors 16 are movably mounted on the guide rail 123, and one movable connector 16 is connected with two adjacent elastic connection pieces 15 of the battery cells, so that the adjacent battery cells 14 are connected in series or in parallel. Fig. 4 shows the cell elastic connection piece 15 and its fixing structure. As shown in fig. 4, the mobile plug 16 is movably mounted on the guide 123.
As shown in fig. 2, a cable 17 (e.g., a power cable, a copper bar, etc.) is disposed between adjacent layers on the battery cabinet rack 12, one end of the cable 17 is connected to a movable connector 16 located at the left end of the upper layer of guide rail 123, and the other end of the cable 17 is connected to a movable connector 16 located at the left end of the lower layer of guide rail 123, so that the movable connectors 16 at one end of the guide rails in the adjacent layers are respectively connected to the cable 17, thereby realizing connection between the battery cells in the adjacent layers on the battery cabinet rack 12. In some examples, the cable 17 may be, but is not limited to, a power cable, a copper bar, etc., and the type of cable may be selected as needed in practical applications.
As shown in fig. 1, the three-sided opening of the battery cabinet frame 12 may be sealed by the battery cabinet housing 11. The battery cabinet housing 11 includes a battery cabinet front end housing 111, a battery cabinet rear end housing 112, and a battery cabinet left end housing 113. As shown in fig. 1, the front end housing 111 of the battery cabinet is enclosed on the front end surface of the battery cabinet frame 12, the rear end housing 112 of the battery cabinet is enclosed on the rear end surface of the battery cabinet frame 12, and the left end housing 113 of the battery cabinet is enclosed on the left side surface of the battery cabinet frame 12.
As shown in fig. 1, a certain number of ventilation holes 1121 are formed in the rear end housing 112 of the battery cabinet corresponding to each layer of the battery cabinet frame 12, and the ventilation holes 1121 may be, but are not limited to, rectangular ventilation holes.
As shown in fig. 1, a fan 17 may be disposed on the front-end housing 111 of the battery cabinet corresponding to each layer of the battery cabinet rack 12, and the fan 17 may blow out hot air on each layer of the battery cabinet rack 12, so as to further improve the heat dissipation efficiency of the energy storage battery cabinet 10. In some examples, a suitable number of fans 17 (e.g., one, two, or more) may be provided as desired for better heat dissipation. In the example of fig. 1, two fans 18 are provided on the front enclosure 111 of the battery cabinet in an area corresponding to each floor of the battery cabinet housing 12, and the two fans 187 are evenly distributed in this area.
As shown in fig. 1, the bottom layer of the battery cabinet frame 12 is provided with a high-voltage box 19, and the high-voltage box 19 is arranged in the bottommost layer of the battery cabinet frame 12 and fixed on a bottom plate 121 of the bottom layer of the battery cabinet frame 12. In some examples, the high voltage wires 19 may be electrically connected to the battery management modules 110 of the respective cell packs in the battery cabinet frame 12 via cables.
As shown in fig. 1, the battery management module 19 is further included in the cell pack of each layer on the rack 12 of the battery cabinet, and the battery management module 110 may be electrically connected to each of the cells 14 in the cell pack through a cable, and may be configured to manage and control charging and discharging of each of the cells 14 in the cell pack. As shown in fig. 1, the battery management module 110 may be secured to the front end housing 111 of the battery cabinet at an area corresponding to each level of the battery cabinet housing 12. For example, it may be disposed at a position between the two electric fans 18.
Fig. 5 shows a schematic structural diagram of the energy storage battery cabinet 10 after being provided with an external air conditioner. As shown in fig. 5, when an external air conditioner is configured, each layer of the battery cabinet frame 12 in the energy storage battery cabinet 10 corresponds to an air-conditioning duct 20, an air outlet 21 of the air-conditioning duct 20 faces an air vent 1121 on the battery cabinet rear end housing 112 in the energy storage battery cabinet 10, the number of the air outlets 21 of the air-conditioning duct is the same as the number of layers of the energy storage battery cabinet 10, and the air outlets 21 of the air-conditioning duct are slightly larger than the air vents 1121, so as to ensure that wind blown out from the air outlets 21 can enter the energy storage battery cabinet 10. The side of the energy storage battery cabinet 10 opposite to the air conditioning duct (i.e. the area of the front end casing 111 of the battery cabinet in the energy storage battery cabinet 10 corresponding to each layer of the battery cabinet frame 12) is provided with a fan 18.
When the energy storage battery cabinet 10 normally works, cold air blown out from the air conditioning duct 20 enters the energy storage battery cabinet 10 through the vent hole 1121 on the battery cabinet rear end housing 112 and fully contacts with each surface of the electric core 14 (the cold air contacts with the bottom surface of the electric core 14 through the vent hole 122 on the bottom plate 121 and the vent hole 131 on the bottom tray 13), so as to cool and dissipate heat in time, and other electrical connecting components in the energy storage battery cabinet 10, such as the electric core elastic connecting sheet 15, the movable connector 16, the cable 17, and the like, are also located in a cooling range. Meanwhile, the vent holes 122 on each layer of bottom plate 121 on the battery cabinet frame 12 in the energy storage battery cabinet 10 can enable cold and hot gas inside the energy storage battery cabinet 10 to rapidly circulate between layers of the battery cabinet frame 12, so that the temperature inside the energy storage battery cabinet 10 is ensured to be uniform.
When the temperature is high, the fan 18 is started, the fan 18 blows out high-temperature gas inside the energy storage battery cabinet 10, and cold air blown out from the air conditioning duct 20 enters the energy storage battery cabinet 10 through the ventilation hole 1121 of the energy storage battery cabinet 10 in an accelerating manner, so that the cooling efficiency is further improved. It can be seen from above that, the energy storage battery cabinet of this application embodiment has realized the three-dimensional heat dissipation of 3D, and the cold wind heat dissipation, the vertical heat dissipation between the inside layer of battery cabinet and the layer, the high temperature heat dissipation that borrows the fan 18 to realize from rear end to front end is dispelled from the individual layer in the battery cabinet promptly.
The energy storage battery cabinet 10 of the embodiment of the application has the following advantages:
1) the parallel design is omitted in the energy storage battery cabinet 10, layers are connected in series, the design and the manufacturing process of the middle module and the battery pack are omitted, and the battery cabinet with high voltage and high energy is formed by directly connecting the battery cores in series. Due to the fact that the design of the module and the battery pack is omitted, compared with a traditional battery cabinet, the internal structure of the battery cabinet is simplified, most parts can be saved, and more battery information acquisition modules with more channels can be used, so that the cost of the battery cabinet is greatly reduced.
2) Because the design of module and battery package has not been passed through, can lead inside outside cold wind circulation to energy storage battery cabinet 10 through seting up the ventilation hole on the shell of battery cabinet rear end, rethread is seted up the ventilation hole on the bottom tray that bears electric core 14 inside energy storage battery cabinet 10 and is made each face and each other connecting piece of electric core 14 can with the cold wind direct contact of outside, need not complicated wind channel design, can realize the inside heat dissipation of energy storage battery cabinet, and the radiating efficiency is higher.
3) The ventilation holes in the bottom plates of all layers in the energy storage battery cabinet 10 can enable cold and hot air flows between all layers to circulate rapidly, so that the temperatures of all layers in the energy storage battery cabinet 10 are consistent, and the temperature in the energy storage battery cabinet 10 is uniform.
4) When the temperature is higher, the high-temperature gas inside the energy storage battery cabinet 10 is blown out by starting the fan, and meanwhile, the fan can also accelerate external cold air to enter the energy storage battery cabinet through the ventilation hole 1121 of the energy storage battery cabinet 10, so that the cooling efficiency is further improved.
5) The series connection between the electric core adopts the form that elasticity connects the spigot, and the overall arrangement is nimble to if when needing to be changed unusually, only need change unusual electric core, need not to change whole battery package or module, saved the replacement cost, improved the utilization ratio of electric core and other parts, reduced cost of maintenance by a wide margin.
In summary, the energy storage battery cabinet of the embodiment of the application can greatly reduce the manufacturing cost and the maintenance cost while improving the heat dissipation efficiency and the temperature uniformity.
An exemplary manufacturing process of the energy storage battery cabinet 10 in the embodiment of the present application may include the following steps:
and step 1, fixing a bottom tray on the bottom plate of each layer except the bottom layer on the battery cabinet frame.
In this step, every layer of battery cabinet frame all is equipped with the stiffening beam, and every layer of bottom plate is porous structure, ventilation that can be fine, and the material is the good metal material of heat dissipation.
The bottom tray in this step is used for separating and fixing electric core, adopts the bolt fastening with the every layer bottom plate of battery cabinet frame, and the material is high strength insulating plastics, and the interval is provided with the ventilation hole in the standing groove of bottom tray, therefore the air current can follow the ventilation hole and get into and fully contact bottom electric core, the heat dissipation cooling.
And 2, welding one end of the electric core elastic connecting sheet on positive and negative poles of the electric core, making the other end of the electric core elastic connecting sheet into an insertable form, sequentially placing the electric core into the bottom tray, and enabling the distance between the upper part of the electric core and the upper layer bottom plate to be 5-50 cm so as to fully dissipate heat.
And 3, mounting the movable connectors on the guide rails of the battery cabinet rack to enable the movable connectors to move within a certain range, connecting one movable connector with two electric core elastic connecting sheets to enable adjacent electric cores to be connected in series or in parallel, and connecting the movable connectors at the two ends of the guide rails with power cables to enable two layers of electric core groups which are adjacent up and down in the battery cabinet rack to be connected.
And 4, installing the collection wiring harness of the battery management module.
And (4) sequentially assembling the battery cores of the rest levels in the rack of the battery cabinet according to the steps 1) to 4).
And 5, after the installation of the battery cores on all layers of the battery cabinet is finished, installing a battery cabinet shell, arranging a certain number of rectangular ventilation holes in the region, corresponding to each layer of the battery cabinet rack, of the battery cabinet rear end shell, arranging fans on the region, corresponding to each layer of the battery cabinet rack, of the battery cabinet front end shell as required, wherein the fans can blow out hot air on each layer, and the heat dissipation efficiency is further improved.
And 6, installing the battery management module and the high-voltage box, and completing connection.
As shown in fig. 1 and 5, the high voltage tank is fixed in the bottom layer of the battery cabinet frame.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An energy storage battery cabinet comprising:
the battery cabinet frame is of a layered frame structure, and the layers are separated by a bottom plate;
the bottom tray is fixed on the bottom, a plurality of mutually separated electric cores are fixedly placed on the bottom tray, and ventilation holes are formed in the bottom tray at intervals in grooves for placing the electric cores;
the battery cabinet shell is used for sealing the battery cabinet rack and comprises a battery cabinet rear end shell, and the battery cabinet rear end shell corresponds to the ventilation holes in the area of each layer of the battery cabinet rack.
2. The energy storage battery cabinet of claim 1, further comprising: electric core elastic connection piece and portable connector set up in the electric core of the same layer passes through in the battery cabinet frame electric core elastic connection piece and portable plug connector realize the series-parallel connection.
3. The energy storage battery cabinet of claim 2, wherein one end of the cell elastic connecting sheet is welded on positive and negative poles of a cell, the other end of the cell elastic connecting sheet is in an insertable structure and is connected with one movable connector, and one movable connector is connected with two adjacent cell elastic connecting sheets so as to connect adjacent cells in series or in parallel.
4. The energy storage battery cabinet of claim 1, wherein each layer of the battery cabinet frame for mounting cells is provided with a guide rail, and the mobile plug connectors are movably mounted on the guide rails.
5. The energy storage battery cabinet of claim 4, further comprising: and the movable plug connectors at the same end of the adjacent guide rails of the cable are respectively connected with the cable so as to realize the electric connection between the adjacent layers of the electric cores in the battery cabinet rack.
6. The energy storage battery cabinet of claim 1, wherein the height of each layer of the battery cabinet frame for mounting cells satisfies: after the battery cell is mounted on the bottom plate of the battery cabinet frame, the distance between the upper surface of the battery cell and the bottom plate of the previous layer is within a preset range.
7. An energy storage battery cabinet according to claim 6, wherein the predetermined range is 5-20 cm.
8. The energy storage battery cabinet of claim 1, wherein the battery cabinet housing further comprises a battery cabinet front end housing that is packaged on the battery cabinet frame front end face, and a fan is disposed on the battery cabinet front end housing in an area corresponding to each layer of the battery cabinet frame for mounting cells.
9. The energy storage battery cabinet of claim 8, further comprising: the battery management module is arranged in an area, corresponding to each layer for installing battery cores, in the battery cabinet rack, on the shell at the front end of the battery cabinet, and is electrically connected with the battery cores in the corresponding layers.
10. The energy storage battery cabinet of claim 1, further comprising: and the high-voltage box is fixed in the bottom layer of the battery cabinet rack and is fixed on the bottom plate of the bottom layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816219.4A CN111883712A (en) | 2020-08-14 | 2020-08-14 | Energy storage battery cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010816219.4A CN111883712A (en) | 2020-08-14 | 2020-08-14 | Energy storage battery cabinet |
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| CN111883712A true CN111883712A (en) | 2020-11-03 |
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| CN202010816219.4A Pending CN111883712A (en) | 2020-08-14 | 2020-08-14 | Energy storage battery cabinet |
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| CN112968240A (en) * | 2021-03-23 | 2021-06-15 | 苏州华亚智能科技股份有限公司 | Assembled energy storage electric cabinet and installation method thereof |
| CN113162150A (en) * | 2021-03-25 | 2021-07-23 | 奶牛新能源(上海)有限公司 | Freely-combined modular mobile energy storage charging device |
| CN113410565A (en) * | 2021-06-15 | 2021-09-17 | 傲普(上海)新能源有限公司 | Simplified installation method of energy storage battery |
| CN113991237A (en) * | 2021-09-13 | 2022-01-28 | 许昌许继电科储能技术有限公司 | 1500V energy storage battery cluster |
| CN114188634A (en) * | 2021-12-09 | 2022-03-15 | 傲普(上海)新能源有限公司 | Energy storage system with efficient and uniform heat dissipation |
| WO2024012389A1 (en) * | 2022-07-15 | 2024-01-18 | 比亚迪股份有限公司 | Heat dissipation air deflector, battery support, battery assembly, battery pack, energy storage battery cabinet, and energy storage system |
| WO2024012090A1 (en) * | 2022-07-15 | 2024-01-18 | 比亚迪股份有限公司 | Energe storage battery cabinet and energy storage system having same |
| WO2024037023A1 (en) * | 2022-08-17 | 2024-02-22 | 比亚迪股份有限公司 | Battery cabinet and energy storage system using same |
| CN117613476A (en) * | 2024-01-17 | 2024-02-27 | 云储新能源科技有限公司 | Battery rack of energy storage system |
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| WO2024037023A1 (en) * | 2022-08-17 | 2024-02-22 | 比亚迪股份有限公司 | Battery cabinet and energy storage system using same |
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| CN117613476B (en) * | 2024-01-17 | 2024-04-05 | 云储新能源科技有限公司 | Battery rack of energy storage system |
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